US20160355060A1 - Tire marking apparatus - Google Patents

Tire marking apparatus Download PDF

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Publication number
US20160355060A1
US20160355060A1 US14/910,876 US201514910876A US2016355060A1 US 20160355060 A1 US20160355060 A1 US 20160355060A1 US 201514910876 A US201514910876 A US 201514910876A US 2016355060 A1 US2016355060 A1 US 2016355060A1
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US
United States
Prior art keywords
tire
roller
axis
driving
rotates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/910,876
Other languages
English (en)
Inventor
Kunio Matsunaga
Tatsuya Ueda
Morihiro IMAMURA
Hiroaki YONEDA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Machinery Technology Corp
Original Assignee
Mitsubishi Heavy Industries Machinery Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Machinery Technology Corp filed Critical Mitsubishi Heavy Industries Machinery Technology Corp
Assigned to MITSUBISHI HEAVY INDUSTRIES MACHINERY TECHNOLOGY CORPORATION reassignment MITSUBISHI HEAVY INDUSTRIES MACHINERY TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Imamura, Morihiro, MATSUNAGA, Kunio, UEDA, TATSUYA, YONEDA, HIROAKI
Publication of US20160355060A1 publication Critical patent/US20160355060A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/001—Decorating, marking or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/72—Side-walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/004—Presses of the reciprocating type
    • B41F16/0046—Presses of the reciprocating type with means for applying print under heat and pressure, e.g. using heat activable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F16/00—Transfer printing apparatus
    • B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
    • B41F16/0073—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products
    • B41F16/008—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products for printing on three-dimensional articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/14—Determining imbalance
    • G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
    • G01M1/26—Determining imbalance by oscillating or rotating the body to be tested with special adaptations for marking, e.g. by drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/72—Side-walls
    • B29D2030/728—Decorating or marking the sidewalls after tyre vulcanization

Definitions

  • the present invention relates to a tire marking apparatus for performing marking in a tire.
  • tire marking apparatuses that perform marking in tires are included in equipment that tests and inspects completed tires, such as tire uniformity machines that measure the non-uniformity of tires or balancing machines that measure the unbalance of tires.
  • marks such as circular shapes or triangular shapes
  • marking apparatuses it is required that marks, such as circular shapes or triangular shapes, are dotted (marking is performed) at circumferential positions (phases) of a tire, which are determined from measurement results and criteria for determination, on a sidewall of the tire.
  • a plurality of marks are formed in a tire
  • a plurality of marks are formed in a sidewall of a tire with positions being shifted from each other in a radial direction of the tire, or a plurality of marks are formed with positions being shifted from each other in a circumferential direction.
  • Increasing the number of marks by combining shifting the positions from each other in the radial direction of the tire and shifting the positions from each other in the circumferential direction is also known.
  • a tire is pinched between an upper rim and a lower rim that are movable in an upward-downward direction, and the tire is rotated in the circumferential direction by rotating both of the rims around an axis of the tire. By rotating the tire, the positions where marking is performed in the tire are shifted from each other in the circumferential direction.
  • the marking is performed by a printing part of the marking apparatus.
  • a marking head is heated by a heating block, and is biased in a direction away from the tire by a spring.
  • the marking head By pushing in the marking head against a spring force using a driving cylinder, the marking head can press a predetermined surface of the tire via a marking tape, and attach marks through heat transfer.
  • the invention has been made in view of such problems, and an object thereof is to provide a tire marking apparatus that can rotate a tire with respect to a printing part with a simple configuration.
  • the invention suggests the following means.
  • a tire marking apparatus of one aspect of the invention is a tire marking apparatus for performing marking in a tire, including a printing part capable of performing printing in a tire; a rotational position adjusting roller that abuts against a portion of the tire, and rotates the tire around an axis of the tire when the rotational position adjusting roller rotates; and a rotational driving unit that rotates the rotational position adjusting roller.
  • the tire can be rotated around its axis by including the rotational position adjusting roller and the rotational driving unit. If the tire rotates around its axis, the circumferential positions of the tire that are marked by the printing part are shifted from each other.
  • the rotational driving unit may include a linear motion part that is driven to move forward and backward on a cylinder axis, and a converting unit that converts a force for the forward and backward movement driving of the linear motion part into the rotative force of the rotational position adjusting roller in one direction.
  • the rotational position adjusting roller can be rotated in the one direction by converting the movement in which the linear motion part is driven to move forward and backward on the cylinder axis, using the converting unit.
  • the converting unit may include a rotation transmission unit that allows the rotation of the rotational position adjusting roller in only the one direction.
  • the rotational position adjusting roller may be rotated in the one direction by the forward movement of the linear motion part, and the rotational position adjusting roller may be idled in the backward movement of the linear motion part.
  • the rotational position adjusting roller can be rotated in only the one direction by repeatedly moving the linear motion part forward.
  • the above tire marking apparatus may further include a centering mechanism that makes rollers abut against the tread of the tire from a plurality of circumferential positions to adjust the position of the tire, and at least one of the rollers of the centering mechanism may constitute the rotational position adjusting roller.
  • the roller of the centering mechanism that adjusts the position of the tire also serves as the rotational position adjusting roller, the tire can be rotated simply by the addition of simple functions in a case where the tire marking apparatus includes the centering mechanism.
  • the above tire marking apparatus may further include a rotational amount detecting unit that detects a rotational amount by which the tire rotates around the axis of the tire; and a linear motion controller that controls the linear motion part on the basis of a detection result of the rotational amount detecting unit.
  • the linear motion controller may make the linear motion part move forward again in a case where the rotational amount of the tire detected by the rotational amount detecting unit is smaller than a target rotational amount.
  • the rotational amount of the tire can be adjusted so as to become the target rotational amount.
  • the above tire marking apparatus may further include a conveying unit including a first roller having a side surface capable of abutting against one side of a sidewall of the tire with respect to the axis of the tire, a second roller having a side surface capable of abutting against the other side thereof with respect to the axis of the tire, and a conveyance driving unit that rotates the first roller around an axis of the first roller and rotates the second roller around an axis of the second roller, and conveying the tire.
  • the conveyance driving unit may rotate the first roller in a normal direction around the axis of the first roller and may rotate the second roller in a reverse direction around the axis of the second roller.
  • the first roller and the second roller may constitute the rotational position adjusting roller.
  • the conveyance driving unit rotates the first roller in the normal direction and rotates the second roller in the reverse direction
  • the tire on the first roller and the second roller rotates around its axis.
  • the first roller and the second roller of the conveying unit also serve as the rotational position adjusting rollers, the configuration of the tire marking apparatus can be simplified even in a case where the tire marking apparatus includes the conveying unit.
  • the tire can be rotated with respect to the printing part with a simple configuration.
  • FIG. 1 is a view illustrating the outline of an overall configuration of a tire marking apparatus of an embodiment of the invention.
  • FIG. 2 is a block diagram of the tire marking apparatus.
  • FIG. 3 is a plan view of a conveying lane of the tire marking apparatus.
  • FIG. 4 is a front view of the integrated conveying lane.
  • FIG. 5 is a view illustrating the internal structure of a first positioning unit of the integrated conveying lane.
  • FIG. 6 is a perspective view of a driving roller of the first positioning unit.
  • FIG. 7 is a plan view of a holding arm and a rotational driving unit of the integrated conveying lane.
  • FIG. 8 is a front view of a rotational amount detecting unit of the tire marking apparatus.
  • FIG. 9 is a front view when a head unit and a ribbon supplying and winding unit of the tire marking apparatus are partially broken.
  • FIG. 10 is a side view when the head unit and the ribbon supplying and winding unit are partially broken.
  • FIG. 11 is a view schematically illustrating a converting unit of the tire marking apparatus in a modification example of the embodiment of the invention.
  • FIG. 12 is a view schematically illustrating the operation of the converting unit.
  • FIGS. 1 to 12 An embodiment of a tire marking apparatus related to the invention will be described, referring to FIGS. 1 to 12 .
  • a marking apparatus 1 of the present embodiment is configured to perform marking (printing) in a tire T, and includes a conveying unit 10 that supports and conveys the tire T from below, a head unit 80 that is arranged above the conveying unit 10 , a ribbon supplying and winding unit 100 that is attached to the head unit 80 , and a control unit 120 that controls the conveying unit 10 , the head unit 80 , and the ribbon supplying and winding unit 100 .
  • the conveying unit 10 has a split conveying lane 15 in which a first conveying lane 16 A and a second conveying lane 16 B are arranged side by side in a width direction of the conveying unit 10 on an upstream side D 1 in the conveying direction D of the conveying unit 10 , and an integrated conveying lane 30 that is arranged on a downstream side D 2 in the conveying unit 10 .
  • the configuration of the first conveying lane 16 A and the second conveying lane 16 B are the same in the present embodiment, the configuration of the first conveying lane 16 A will be illustrated by adding the English capital letter “A” to figures or English lower case letters, and the configuration corresponding to the second conveying lane 16 B will be illustrated by adding the English capital letter “B” to figures or English lower case letters. Accordingly, overlapping description will be omitted. Positioning units 36 A and 36 B, printing pins 83 A to 83 F, ribbon supplying units 101 A and 101 B, and the like to be described below will be described similarly.
  • first driving roller 17 A and a second driving roller 17 B (to be described below) of the first conveying lane 16 A are the same.
  • each first driving roller (first roller) 17 A and each first driven roller 18 A are rotatably supported by support members 19 A at both ends in the width direction around their respective axes 17 a A and 18 a A.
  • the height of an upper surface of the first driving roller 17 A and the height of an upper surface of the first driven roller 18 A substantially coincide with each other, or the upper surface of the first driving roller 17 A is arranged to be slightly higher.
  • the first driving roller 17 A and the first driven roller 18 A are alternately arranged along the conveying direction D.
  • the first driving roller 17 A and the first driven roller 18 A are arranged on the same plane where the axes 17 a A and 18 a A are parallel to the horizontal plane.
  • a belt that is not illustrated is connected to the respective first driving rollers 17 A.
  • a rotating shaft of a first roller driving motor 20 A illustrated in FIG. 2 is connected to this belt.
  • the rotating shaft of the first roller driving motor 20 A can be driven so as to be switched to a normal direction (first direction) and a reverse direction (second direction).
  • the first roller driving motor 20 A and a second roller driving motor 20 B constitute a conveyance driving unit 21 .
  • the tire T is arranged on the respective first driving rollers 17 A, the respective first driven rollers 18 A, the respective second driving rollers (second rollers) 17 B, and the respective second driven rollers 18 B.
  • the tire T is arranged so that a side surface of at least the first driving roller 17 A abuts against one side of a sidewall T 1 of the tire T with respect to an axis T 6 of the tire T and a side surface of the first driven roller 18 A auxiliarily abuts against the one side.
  • the tire T is arranged so that a side surface of at least the second driving roller 17 B abuts against the other side of the sidewall T 1 with respect to the axis T 6 and a side surface of the second driven roller 18 B auxiliarily abuts against the other side.
  • the rollers 17 A and 18 A and the rollers 17 B and 18 B abut against the one sidewall T 1 of the tire T, respectively.
  • each first driving roller 17 A rotates in a normal direction F 1 around its axis 17 a A.
  • each second driving roller 17 B rotates in the normal direction F 1 around its axis 17 a B.
  • the tire T arranged on the respective driving rollers 17 A and 17 B is conveyed from the upstream side D 1 toward the downstream side D 2 .
  • Each first driven roller 18 A and each second driven roller 18 B that support the tire T to be conveyed performs the corotation of rotating according to the movement of the tire T.
  • the driving rollers 17 A and 17 B are rollers that rotationally drive the tire T
  • the driven rollers 18 A and 18 B are rollers that are driven according to the rotating tire T.
  • the first driving roller 17 A rotates in a reverse direction F 2 around its axis 17 a A
  • the second driving roller 17 B rotates in the reverse direction F 2 around its axis 17 a B.
  • the tire T arranged on the respective driving rollers 17 A and 17 B is conveyed from the downstream side D 2 toward the upstream side D 1 .
  • the pair of support members 19 A are connected together by a coupling member 24 A.
  • the coupling member 24 A is attached to a support member 26 A provided at a leg 25 A extending in an upward-downward direction. As a lower end of the leg 25 A is arranged on a floor surface (not illustrated), the first conveying lane 16 A is supported at a position separated upward from the floor surface.
  • the integrated conveying lane 30 is configured similar to the integrated conveying lanes 16 A and 16 B. That is, as illustrated in FIG. 3 , in the integrated conveying lane 30 , each third driving roller 31 and each third driven roller 32 are supported by the support members 33 at both ends in the width direction so as to be rotatable around their respective axes 31 a and 32 a .
  • the support members 33 are attached to the aforementioned support members 26 A and 26 B.
  • a belt that is not illustrated is connected to the respective third driving rollers 31 .
  • a rotating shaft of a third roller driving motor 34 (refer to FIG. 2 ) is connected to this belt.
  • the rotating shaft of the third roller driving motor 34 can be driven so as to be switched to the normal direction and the reverse direction.
  • the support member 26 A is provided with the first positioning unit 36 A.
  • a pair of holding arms 38 A and 39 A are supported on a supporting base 37 A so as to be rotatable (rockable) about first ends of the holding arms 38 A and 39 A.
  • the holding arms 38 A and 39 A can be rotated on a plane parallel to the horizontal plane about on their respective first ends via gears 40 A and 41 A by an arm driving cylinder 42 A (refer to FIG. 2 ).
  • the holding arm 38 A is arranged closer to the downstream side D 2 than the holding arm 39 A.
  • a second end of the holding arm 38 A is provided with a columnar shaft member 38 a A.
  • a driving roller (a rotational position adjusting roller, a roller) 44 A illustrated in FIGS. 5 and 6 is rotatably supported by the shaft member 38 a A.
  • the driving roller 44 A is supported so as to be rotatable around an axis orthogonal to the horizontal plane.
  • the driving roller 44 A has a cylindrical roller body 45 A, and a plurality of outside protrusions 46 A that protrude from an outer peripheral surface of the roller body 45 A and extend along an axis of the roller body 45 A.
  • the plurality of outside protrusions 46 A are arranged so as to be separated from each other in a circumferential direction of the roller body 45 A.
  • the roller body 45 A and the outside protrusions 46 A that constitute the driving roller 44 A can be configured using a timing pulley made of steel, or can be integrally formed of resin, such as nylon or polyoxymethylene (POM).
  • resin such as nylon or polyoxymethylene (POM).
  • the driving roller 44 A may be configured so as not to include the plurality of outside protrusions 46 A, and materials in which the frictional coefficient of the outer peripheral surface of the roller body 45 A becomes large may be used for the driving roller 44 A.
  • a rotational driving unit 48 A for rotating the driving roller 44 A is attached to the holding arm 38 A.
  • the rotational driving unit 48 A as illustrated in FIGS. 5 and 7 , has an air cylinder (linear motion part) 50 A that is driven to move forward and backward on a cylinder axis 49 A, a link member 51 A that is rotatably connected to a tip part of the air cylinder 50 A in a forward movement direction, and a well-known clutch mechanism (rotation transmission part) 52 A that is attached to the link member 51 A.
  • the link member 51 A and the clutch mechanism 52 A constitute a converting unit 53 A.
  • the air cylinder 50 A is configured so that a rod 50 b A is inserted into a cylinder body 50 a A so as to be capable of moving forward and backward with respect to the cylinder body 50 a A.
  • a cylinder driving unit 50 c A (refer to FIG. 2 ), such as an air compressor, capable of supplying and discharging compressed air, is connected to the cylinder body 50 a A via a tube (not illustrated).
  • the air cylinder 50 A that is a linear motion part is driven with compressed air.
  • the linear motion part may be driven with hydraulic pressure, magnetism, or the like.
  • a tip part of the rod 50 b A in the forward movement direction and a first end of the link member 51 A are rotatably connected together with a pin of which the reference sign is omitted.
  • a second end 51 a A of the link member 51 A is formed in a cylindrical shape.
  • the shaft member 38 a A of the holding arm 38 A is inserted into a tube hole of the second end 51 a A so as to be rotatable with respect to the second end 51 a A.
  • the aforementioned clutch mechanism 52 A is fixed to an outer peripheral surface of the second end 51 a A.
  • the clutch mechanism 52 A is arranged within a tube hole of the roller body 45 A of the driving roller 44 A.
  • the clutch mechanism 52 A restricts that the driving roller 44 A rotates in a direction (one direction) E 1 around an axis 38 b A of the shaft member 38 a A with respect to the clutch mechanism 52 A.
  • the clutch mechanism allows the driving roller 44 A to rotate in a direction E 2 around the axis 38 b A with respect to the clutch mechanism 52 A.
  • the rotational driving unit 48 A configured in this way, if the rod 50 b A moves forward as illustrated by a position P 3 of FIG. 7 with respect to the cylinder body 50 a A, the link member 51 A rotates in the direction E 2 around the axis 38 b A, and moves to a position P 4 .
  • the clutch mechanism 52 A and the driving roller 44 A are connected together, and the clutch mechanism 52 A and the driving roller 44 A rotate in the direction E 2 around the axis 38 b A together with the second end 51 a A of the link member 51 A.
  • a configuration may be adopted such that the driving roller 44 A does not rotate when the rod 50 b A moves forward and the driving roller 44 A rotates when the rod 50 b A moves backward.
  • the clutch mechanism 52 A allows the rotation of the driving roller 44 A only in the direction E 2 around the axis 38 b A with respect to the second end 51 a A of the link member 51 A.
  • the converting unit 53 A converts a force for the forward and backward movement driving of the air cylinder 50 A into the rotative force of the driving roller 44 A in the direction E 2 around the axis 38 b A.
  • the rotational driving unit 48 A includes the air cylinder 50 A and the converting unit 53 A, and the driving roller 44 A rotates in the direction E 2 by movement in which the air cylinder 50 A is driven to move forward and backward on the cylinder axis 49 A being converted by the converting unit 53 A.
  • the driving roller 44 A rotates at a constant angle around the axis 38 b A.
  • a driven roller 57 A illustrated in FIG. 3 is rotatably supported by the second end of the holding arm 39 A.
  • the driven roller 57 A is driven according to the tire T that rotates as will be described below.
  • the support member 26 B is provided with a second positioning unit 36 B.
  • the first positioning unit 36 A and the second positioning units 36 B constitute a centering mechanism 59 .
  • the holding arm 38 B of the second positioning unit 36 B is arranged closer to the upstream side D 1 than the holding arm 39 B.
  • the first positioning unit 36 A and the second positioning unit 36 B are arranged so as to face each other at the end of the split conveying lane 15 on the downstream side D 2 interposed therebetween.
  • a tire detecting sensor 61 detects that the tire T conveyed by the conveying unit 10 has arrived at a marking position P 1 specified between the first positioning unit 36 A and the second positioning unit 36 B.
  • the tire detecting sensor 61 well-known contact type or non-contact-type sensors can be appropriately selected and used.
  • the tire detecting sensor 61 transmits the detection result to the control unit 120 .
  • the holding arms 38 A, 39 A, 38 B, and 39 B are arranged so as to become parallel to the conveying direction D of the tire T, and there is no hindrance to conveyance of the tire T.
  • the arm driving motors 40 A, 41 A, 40 B, and 41 B are driven to rotate the holding arms 38 A, 39 A, 38 B, and 39 B in order to make the rollers 44 A, 57 A, 44 B, and 57 B abut against a tread T 2 of the tire T from a plurality of positions in the circumferential direction.
  • the tire T rotates in a predetermined direction around the axis T 6 .
  • the driven rollers 57 A and 57 B are driven and corotated.
  • the position of the axis T 6 of the tire T is adjusted (the tire T is aligned) by inching-driving the driving rollers 44 A and 44 B.
  • the driving rollers 44 A and 44 B of the centering mechanism 59 that adjusts the position of the tire T also serve as rotational position adjusting rollers that rotate the tire T around the axis T 6 .
  • the tire T is rotated around the axis T 6 with the driving forces of the two driving rollers 44 A and 44 B of the centering mechanism 59 .
  • the number of driving rollers that drive the tire T is not limited to this, and one driving roller may be used or three or more driving rollers may be used.
  • a rotational amount detecting unit 65 is attached to the leg 25 A via a support member 64 .
  • a rotating shaft 68 is attached to a tip part of a rod 66 a of an air cylinder 66 via a coupling member 67 .
  • the rod 66 a is inserted into a cylinder body 66 b of the air cylinder 66 so as to be capable of moving forward and backward.
  • the cylinder body 66 b is fixed to the leg 25 A by the aforementioned support member 64 .
  • a cylinder driving unit 70 (refer to FIG. 2 ) is connected to the cylinder body 66 b via a tube (not illustrated).
  • the rotating shaft 68 is arranged so as to be orthogonal to the horizontal plane.
  • the rotating shaft 68 is supported by the coupling member 67 so as to be rotatable around an axis of the rotating shaft 68 .
  • a detection roller 71 is attached to a lower end of the rotating shaft 68 , and an encoder 72 is attached to an upper part of the rotating shaft.
  • the detection roller 71 moves to a position P 5 , and a side surface of the detection roller 71 abuts against the tread T 2 of the tire T at the marking position P 1 .
  • the encoder 72 detects the rotational amount of the rotating shaft 68 and corrects the detection result to detect the rotational amount of the tire T.
  • the encoder 72 transmits the detection result to the control unit 120 .
  • the head unit 80 has a base 82 supported on a supporting base 81 , six printing pins (printing parts) 83 A to 83 F supported by the base 82 , and six air cylinders 84 A to 84 F that are driven to move the printing pins 83 A to 83 F forward and backward.
  • the printing pins 83 A to 83 F are short for the printing pins 83 A, 83 B, 83 C, 83 D, 83 E, and 83 F.
  • the printing pins 83 A to 83 F are formed in the shape of a rod that extends in an upward-downward direction.
  • the printing pins 83 A to 83 F are arranged in a grid pattern so that the printing pins 83 A, 83 B, and 83 C constitute one overlapping row as viewed from a side surface and so that the printing pins 83 D, 83 E, and 83 F constitute the other overlapping one row as viewed from the side surface.
  • the printing pin 83 A and the printing pin 83 D, the printing pin 83 B and the printing pin 83 E, and the printing pin 83 C and the printing pin 83 F overlap each other, respectively.
  • the printing pin 83 B is formed linearly.
  • the printing pins 83 A and 83 C are formed such that central parts thereof in a longitudinal direction are bent in the shape of a crank. Accordingly, the pitch of lower ends of the printing pins 83 A, 83 B, and 83 C is smaller compared to the pitch of upper ends thereof.
  • shapes protruding from end surfaces such as circular shapes or triangular shapes, are formed in lower surfaces of the printing pins 83 A, 83 B, and 83 C.
  • the printing pins 83 D, 83 E, and 83 F are configured similar to the printing pins 83 A, 83 B, and 83 C.
  • An upper end of the printing pin 83 A is provided with a diameter-enlarged part 83 a A (diameter-enlarged parts 83 a D, 83 a E, and 83 a F are not illustrated).
  • the printing pins 83 A to 83 F are guided by guide holes (not illustrated), which are formed in a heating block 86 attached to the base 82 , so as to move forward and backward in the upward-downward direction with respect to the base 82 .
  • Heating means 87 (refer to FIG. 2 ) having a heater or the like is arranged within the heating block 86 .
  • the heating means 87 applies predetermined electric power to the heater, thereby heating the printing pins 83 A to 83 F inserted through the guide holes.
  • a guide plate 88 is arranged below the heating block 86 , and the guide plate 88 is attached to the base 82 .
  • a through-hole 88 a through which the lower ends of the printing pins 83 A to 83 F are insertable is formed in the guide plate 88 .
  • a coil spring 90 A is arranged between a lower surface of the diameter-enlarged part 83 a A of the printing pin 83 A and an upper surface of the heating block 86 (coil springs 90 D, 90 E, and 90 F are not illustrated).
  • the coil spring 90 A is inserted through the printing pin 83 A.
  • the coil spring 90 A biases the printing pin 83 A upward.
  • a lower surface of the printing pin 83 A is arranged above a lower surface of the guide plate 88 .
  • the air cylinder 84 A is configured so that a rod 84 b A is inserted through a cylinder body 84 a A so as to be capable of moving forward and backward within the cylinder body 84 a A (cylinder bodies 84 a D, 84 a E, 84 a F, rod 84 b D, 84 b E, and 84 b F are not illustrated).
  • the cylinder body 84 a A is attached to the base 82 .
  • a cylinder driving unit 92 A (refer to FIG. 2 ) is connected to the cylinder body 84 a A via a tube (not illustrated).
  • the rod 84 b A downwardly moves forward with respect to the cylinder body 84 a A.
  • the lower surface of the printing pin 83 A protrudes below the lower surface of the guide plate 88 by moving the printing pin 83 A forward against the biasing force of the coil spring 90 A.
  • the heated printing pin 83 A presses an ink ribbon R 1 (to be described below) against the sidewall T 1 of the tire T, marking is performed in the tire T.
  • the ribbon supplying and winding unit 100 as illustrated in FIGS. 9 and 10 , has the ribbon supplying units 101 A and 101 B fixed to the base 82 of the head unit 80 , and ribbon winding units 102 A and 102 B.
  • a supply roller 105 A and a guide roller 106 A are rotatably supported by an auxiliary base 104 A fixed to the base 82 .
  • a red ink ribbon R 1 is wound around the supply roller 105 A.
  • a heat transfer type ribbon to which ink is transferred by being pressed and heated is used as the ink ribbon R 1 .
  • the ink ribbon R 1 wound out from the supply roller 105 A is guided to the lower surface of the guide plate 88 after being wound around the guide roller 106 A so that constant tension acts on the ink ribbon R 1 .
  • the ink ribbon R 1 faces lower surfaces of the printing pins 83 A, 83 B, and 83 C across the through-hole 88 a of the guide plate 88 .
  • a yellow ink ribbon R 2 is wound around a supply roller 105 B of the ribbon supplying unit 101 B.
  • a plane in which the supply roller 105 B rotates and a plane in which the supply roller 105 A rotates are shifted from each other in a thickness direction of the base 82 , that is, in a width direction of the ink ribbons R 1 and R 2 .
  • the ink ribbon R 2 faces lower end surfaces of the printing pins 83 D, 83 E, and 83 F across the through-hole 88 a of the guide plate 88 .
  • the guide roller 110 A is rotatably supported by an auxiliary base 109 A fixed to the base 82 , and a main body 111 a A of a winding motor 111 A is fixed to the auxiliary base.
  • a winding roller 112 A is connected to a rotating shaft 111 b A of the winding motor 111 A.
  • the ink ribbon R 1 is wound around the winding roller 112 A.
  • the ink ribbon R 1 sent out from the guide plate 88 is wound around the winding roller 112 A after being wound around the guide roller 110 A.
  • the ink ribbon R 2 is wound around the winding roller 112 B.
  • the control unit 120 has a linear motion controller 122 and a main controller 123 that are connected to a bus 121 .
  • the roller driving motors 20 A, 20 B, and 34 of the conveying unit 10 , the arm driving cylinders 42 A and 42 B, the cylinder driving units 50 c A, 50 c B, 70 , the tire detecting sensor 61 , the encoder 72 , the heating means 87 of the head unit 80 , the cylinder driving units 92 A to 92 F, and the winding motors 111 A and 111 B of the ribbon supplying and winding unit 100 are connected to the bus 121 .
  • the linear motion controller 122 and the main controller 123 are respectively constituted of a timer, an arithmetic element, a memory, a control program, or the like.
  • the linear motion controller 122 drives the cylinder driving units 50 c A and 50 c B to control the air cylinders 50 A and 50 B, on the basis of the detection result of the encoder 72 of the rotational amount detecting unit 65 .
  • the main controller 123 controls the roller driving motors 20 A, 20 B, and 34 or the like other than the cylinder driving units 50 c A and 50 c B.
  • the main controller 123 of the control unit 120 rotates the rotating shafts of the roller driving motors 20 A, 20 B, and 34 in the normal direction.
  • the driving rollers 17 A, 17 B, and 31 rotate in the normal direction F 1 .
  • the heating block 86 By heating the heating block 86 by the heating means 87 , the printing pins 83 A to 83 F are heated to a predetermined temperature.
  • the tire T is arranged on the split conveying lane 15 in a state where circumferential positions where marking is performed are adjusted by the testing device.
  • the tire T is conveyed from the upstream side D 1 toward the downstream side D 2 by the driving rollers 17 A and 17 B.
  • Information such as the external diameter of the tire T, the shape or color of marking performed in the tire T, and the like, is transmitted from the testing device to the control unit 120 of the marking apparatus 1 .
  • the tire detecting sensor 61 detects that the tire T has arrived at the marking position P 1 , and transmits the detection result to the linear motion controller 122 and the main controller 123 of the control unit 120 .
  • the linear motion controller 122 drives the arm driving cylinders 42 A and 42 B, and makes the rollers 44 A, 57 A, 44 B, and 57 B abut against the tread T 2 of the tire T. In this case, the rollers 44 A, 57 A, 44 B, and 57 B move to the position P 6 of FIG. 3 .
  • the cylinder driving unit 92 A is driven to move the printing pin 83 A forward together with the rod 84 b A of the air cylinder 84 A.
  • marking of red circular shapes is performed on the sidewall T 1 of the tire T.
  • the winding motor 111 A is driven to rotate the winding roller 112 A in order to wind the ink ribbon R 1 around the winding roller 112 A with a fixed length.
  • the position of the tire T is adjusted by driving the cylinder driving units 50 c A and 50 c B and inching-driving the driving rollers 44 A and 44 B.
  • the outside protrusion 46 A being formed in the driving roller 44 A, the frictional force between the driving roller 44 A and the tire T can be enhanced.
  • the driven rollers 57 A and 57 B are driven and rotated according to the rotating tire T. If the main controller 123 drives the cylinder driving unit 70 to move the rod 66 a forward, the side surface of the detection roller 71 abuts against the tread T 2 of the tire T.
  • the linear motion controller 122 inching-drives the driving rollers 44 A and 44 B a predetermined number of times, and rotates the tire T around the axis T 6 by a predetermined target rotational amount.
  • the detection roller 71 that has abutted against the tire T rotates around its axis.
  • the rotational amount detecting unit 65 detects the rotational amount of the tire T, converts the detected rotational amount of the tire T into a signal to transmit the signal to the linear motion controller 122 , and checks whether the tire has been rotated by the predetermined target rotational amount.
  • the linear motion controller 122 further drives the cylinder driving units 50 c A and 50 c B to move the rods 50 b A and 50 b B of the air cylinders 50 A and 50 B forward.
  • the rotational amount (angle) by which the tire T rotates around the axis T 6 becomes small when the driving rollers 44 A and 44 B have been inching-driven a predetermined number of times. For this reason, as the external diameter of the tire T becomes large, the number of times of inching-driving may be increased.
  • the number of times by which the driving rollers 44 A and 44 B are inching-driven may be changed.
  • the main controller 123 drives the cylinder driving unit 92 E to move the printing pin 83 E forward.
  • marking of yellow triangular shapes is performed at positions that are different in the circumferential direction from the marking of the circular shapes in the sidewall T 1 of the tire T.
  • marking after the second marking can be sequentially performed at a position shifted in the circumferential direction from the position where the first marking is performed in the tire T.
  • the main controller 123 drives the cylinder driving unit 70 to move the rod 66 a backward, the detection roller 71 is separated from the tread T 2 of the tire T.
  • the linear motion controller 122 drives the arm driving cylinders 42 A and 42 B to separate the rollers 44 A, 57 A, 44 B, and 57 B from the tire T.
  • the tire T in which two marks have been formed is conveyed from the marking position P 1 toward the downstream side D 2 by the integrated conveying lane 30 .
  • the tire T can be rotated around the axis T 6 by including the driving rollers 44 A and 44 B and the rotational driving units 48 A and 48 B. If the tire T rotates around the axis T 6 , the circumferential positions of the tire T that are marked by the printing pins 83 A to 83 F are shifted from each other.
  • the tire T can be rotated with respect to the printing pins 83 A to 83 F with a simple configuration.
  • the rotational driving unit 48 A includes the air cylinder 50 A and the converting unit 53 A, and movement in which the air cylinder 50 A is driven to move forward and backward on the cylinder axis 49 A is converted by the converting unit 53 A. Accordingly, the driving roller 44 A can be rotated in the direction E 2 .
  • the marking apparatus 1 includes the clutch mechanism 52 A and the air cylinder 50 A is repeatedly moved forward and backward, the driving roller 44 A can only be rotated in the direction E 2 .
  • the driving rollers 44 A and 44 B of the centering mechanism 59 that adjusts the position of the tire T also serve as the rotational position adjusting rollers that rotate the tire T around the axis T 6 . Therefore, in a case where the marking apparatus 1 includes the centering mechanism 59 , the tire T can be rotated simply by the addition of simple functions instead of the addition of a new device.
  • the marking apparatus 1 includes the rotational amount detecting unit 65 and the linear motion controller 122 . Accordingly, even in a case where there is slipping between the driving rollers 44 A and 44 B and the tire T and the tire T does not sufficiently rotate, the rotational amount of the tire T can be adjusted so as to become the target rotational amount.
  • the converting unit 53 A is the link member 51 A and the clutch mechanism 52 A.
  • the converting unit may be a link mechanism 130 illustrated in FIG. 11 .
  • the link mechanism 130 has a link member 131 having a first end attached to the driving roller 44 A, and a connecting part 132 that rotatably connects a second end of the link member 131 and a tip part of the rod 50 b A.
  • the rotational position adjusting rollers are the driving rollers 44 A and 44 B of the centering mechanism 59 .
  • the rotational position adjusting rollers are not limited to these, and may be, for example, the first driving roller 17 A and the second driving roller 17 B of the split conveying lane 15 .
  • the driving rollers 17 A and 17 B abut against the sidewall T 1 of the tire T, and the roller driving motors 20 A and 20 B become the rotational driving units.
  • roller driving motors 20 A and 20 B rotate the first driving roller 17 A in the normal direction F 1 around the axis 17 a A and rotate the second driving roller 17 B in the reverse direction F 2 around the axis 17 a B
  • the tire T on the driving rollers 17 A and 17 B rotates around the axis T 6 .
  • the configuration of the marking apparatus 1 can be simplified even in a case where the marking apparatus 1 includes the conveying unit 10 .
  • the rotational amount detecting unit 65 detects the rotation of the detection roller 71 that abuts against the tire T, using the encoder 72 .
  • the encoder 72 may directly detect the rotation of the driving rollers 44 A and 44 B of the centering mechanism 59 , or may detect the rotation of the rollers 17 A, 17 B, 18 A, and 18 B at the marking position P 1 of the split conveying lane 15 .
  • the marking apparatus 1 may not include the rotational amount detecting unit 65 .
  • the marking apparatus may also have a form in which a disk part that rotates around a rotating shaft is included, and a plurality of printing pins may be provided at mutual intervals in a circumferential direction of the disk part in the disk part.
  • An air cylinder is provided above one printing pin among the plurality of printing pins, and a printing pin to be pressed by the air cylinder is changed by rotating the disk part around a rotating shaft. Accordingly, the shape of marking performed in the tire T can be changed.
  • the invention can be applied to marking apparatuses that rotate a tire to perform marking.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tyre Moulding (AREA)
  • Testing Of Balance (AREA)
  • Manufacturing & Machinery (AREA)
  • Tires In General (AREA)
US14/910,876 2015-02-05 2015-02-05 Tire marking apparatus Abandoned US20160355060A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/053210 WO2016125280A1 (ja) 2015-02-05 2015-02-05 タイヤマーキング装置

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US20160355060A1 true US20160355060A1 (en) 2016-12-08

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US14/910,876 Abandoned US20160355060A1 (en) 2015-02-05 2015-02-05 Tire marking apparatus

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US (1) US20160355060A1 (de)
JP (1) JP6132970B2 (de)
KR (1) KR20170105029A (de)
CN (1) CN107206716A (de)
DE (1) DE112015006121T5 (de)
WO (1) WO2016125280A1 (de)

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CN111788077A (zh) * 2018-03-01 2020-10-16 阿克隆特种机械公司 贴花标记器系统

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CN113829650B (zh) * 2020-06-24 2023-03-21 沈阳新松机器人自动化股份有限公司 一种旋转定心装置及对中方法
CN114872453B (zh) * 2022-06-01 2023-08-01 三角轮胎股份有限公司 对窄断面轮胎动平衡均匀性检测之后的自动打标方法

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US5905199A (en) * 1996-11-29 1999-05-18 Bridgestone Corporation Tire marking method
US20130186537A1 (en) * 2010-11-08 2013-07-25 Bridgestone Corporation Tire surface printing method and tire printing device
US20130333615A1 (en) * 2011-04-07 2013-12-19 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Loading device for tire testing machine

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DE1224060B (de) * 1958-07-10 1966-09-01 Us Rubber Co Einrichtung zum Feststellen einer statischen Unwucht in Reifen
JPS61152440A (ja) * 1984-12-27 1986-07-11 Yokohama Rubber Co Ltd:The 帯状材料の自動供給装置
JP5346565B2 (ja) * 2008-12-01 2013-11-20 株式会社ブリヂストン ドーナツ型（リング型）物品用インクジェット印刷装置
BR112012019748A2 (pt) * 2010-02-08 2016-05-10 Micro Poise Measurement Systems Llc aparelhagem para timbragem em pneus.
JP5731240B2 (ja) * 2011-03-08 2015-06-10 大和製衡株式会社 タイヤバランス測定システム

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US5905199A (en) * 1996-11-29 1999-05-18 Bridgestone Corporation Tire marking method
US20130186537A1 (en) * 2010-11-08 2013-07-25 Bridgestone Corporation Tire surface printing method and tire printing device
US20130333615A1 (en) * 2011-04-07 2013-12-19 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Loading device for tire testing machine

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111788077A (zh) * 2018-03-01 2020-10-16 阿克隆特种机械公司 贴花标记器系统

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DE112015006121T5 (de) 2017-10-26
JPWO2016125280A1 (ja) 2017-04-27
CN107206716A (zh) 2017-09-26
KR20170105029A (ko) 2017-09-18
JP6132970B2 (ja) 2017-05-24
WO2016125280A1 (ja) 2016-08-11

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